Trefnant Wind ForecastUnited KingdomWLPowysTrefnant1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Trefnant wind forecast issued today at 7:09 pm. Next forecast at approx. 7:09 am. Wind Speed Wind GustTrefnant Wind Statistics October WindLake Vyrnwy Saws (19km)2026SeptemberOctoberStrongest 2 October, 202617.9mph SSWAverage October3mphStrongest 12 September, 202633.6mph WSWAverage September8.4mphStrongest 4 April, 202649.2mph SWAverage 20268.3mphClimate (2021–2026)Lake Vyrnwy Saws (19km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 23 January, 202451.4mph SWAverage 2021–20268.1mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average October20%11.25%2.5%CalmNear GaleOctober Wind RoseOctober (5 Year Average)5 Year Average Annual5 Year Average October22.5%12.5%2.5%CalmNear GaleGet WillyWeather+ to remove ads